Environment-friendly fluorocarbon aluminum veneer and preparation method thereof

A type of fluorocarbon aluminum veneer, an environmentally friendly technology, applied in the direction of coating, special surface, pretreatment surface, etc., can solve the problems of poor adhesion, insufficient hardness, environmental pollution, etc., to increase sliding, increase hardness and gloss , Improve the effect of bonding effect

Active Publication Date: 2020-05-19
江苏成功材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that there is a chromization step in the above-mentioned method, but, as common sense, this chromization step will cause serious environmental pollution, and a large amount of toxic chemical reagents are added in the conventional fluorocarbon coating
[0004] Tetrafluorocarbon coating, because its main component fluorocarbon resin contains four fluorocarbon bonds, the fluorocarbon bonds are difficult to break under conditions such as heat and light, so it has longer weather resistance and super strength than difluorocarbon and trifluorocarbon Excellent corrosion resistance to chemical media, the aluminum substrate prepared by it has excellent aging resistance and chemical resistance, but fluorocarbon coatings, especially the existing tetrafluorocarbon powder coatings, have adhesion after film formation in production Poor focus and insufficient hardness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing an environment-friendly fluorocarbon aluminum veneer, comprising the following steps: (1) cleaning and drying the surface of the aluminum substrate layer; (2) mixing 35 parts of epoxy resin, 3.5 parts of low-viscosity silicone, and glass flakes 3.8 parts, 1.6 parts of silicone rubber spherical micropowder, 12 parts of acrylated phosphate ester, 12 parts of solvent, after mixing evenly, add 0.2 parts of curing agent, spray on the surface of the aluminum substrate layer, and cure for 3 hours to form an environmentally friendly film with a thickness of 25um (3) 45 parts of tetrafluorocarbon resin, 12.5 parts of acrylic resin, 7.5 parts of natural rubber latex, 0.2 parts of sulfur powder, 3 parts of hydroxyalkylamide, 5 parts of tetramethoxymethyl glycoluril, attapulgite After mixing 2 parts and 3 parts of additives evenly, spray electrostatically onto the surface of the environmental protection film with a thickness of 0.5mm and cure at 150°C for 3 ho...

Embodiment 2

[0026] A method for preparing an environment-friendly fluorocarbon aluminum veneer, comprising the following steps: (1) cleaning and drying the surface of the aluminum substrate layer; (2) mixing 30 parts of epoxy resin, 4 parts of low-viscosity silicone, and glass flakes 3.2 parts, 2.0 parts of silicone rubber spherical micropowder, 10 parts of acrylated phosphate ester, 14 parts of solvent, after mixing evenly, add 0.1 part of curing agent, spray on the surface of the aluminum substrate layer, and cure for 4 hours to form an environmentally friendly film with a thickness of 25um (3) 40 parts of tetrafluorocarbon resin, 10 parts of acrylic resin, 10 parts of natural rubber latex, 0.1 part of sulfur powder, 5 parts of hydroxyalkylamide, 4 parts of tetramethoxymethyl glycoluril, attapulgite After mixing 3 parts and 1 part of additives evenly, spray electrostatically onto the surface of the environmental protection film with a thickness of 0.5mm and cure at 150°C for 2 hours.

Embodiment 3

[0028]A method for preparing an environment-friendly fluorocarbon aluminum veneer, comprising the following steps: (1) cleaning and drying the surface of the aluminum substrate layer; (2) mixing 40 parts of epoxy resin, 3 parts of low-viscosity silicone, and glass flakes 4.4 parts, 1.2 parts of silicone rubber spherical micropowder, 14 parts of acrylated phosphate ester, 10 parts of solvent, after mixing evenly, add 0.3 parts of curing agent, spray on the surface of the aluminum substrate layer, and cure for 2 hours to form an environmentally friendly film with a thickness of 25um (3) 50 parts of tetrafluorocarbon resin, 10 parts of acrylic resin, 10 parts of natural rubber latex, 0.1 part of sulfur powder, 5 parts of hydroxyalkylamide, 4 parts of tetramethoxymethyl glycoluril, attapulgite After mixing 3 parts and 1 part of additives evenly, spray electrostatically onto the surface of the environmental protection film with a thickness of 0.5mm and cure at 150°C for 4 hours.

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Abstract

The invention discloses an environment-friendly fluorocarbon aluminum veneer and a preparation method thereof. The environment-friendly fluorocarbon aluminum veneer comprises an aluminum substrate layer, an environment-friendly film layer and a tetrafluorocarbon layer which are sequentially arranged from inside to outside, and the environment-friendly film layer is prepared from mixed epoxy resin,low-viscosity silicone, glass flakes, organosilicon silicone rubber spherical micro powder, acrylated phosphate, a solvent and a curing agent; the thickness of the environment-friendly film layer is25 microns, the thickness of the glass flakes is 2 microns, the mesh number is 400-500 meshes, and the particle size range of the organic silicon rubber spherical micro powder is 25-30 microns; the mixed epoxy resin comprises medium-epoxy-value epoxy resin and low-epoxy-value epoxy resin in a mass ratio of 5:1; the tetrafluorocarbon layer is formed by electrostatic spraying of a tetrafluoro-carbonpowder coating composed of the following components: tetrafluoro-carbon resin, acrylic resin, natural rubber latex, sulfur powder, hydroxyalkylamide, tetramethoxymethylglycoluril, attapulgite and anauxiliary agent.

Description

technical field [0001] The invention belongs to the field of plate production technology, and in particular relates to an environment-friendly fluorocarbon aluminum veneer and a preparation method thereof. Background technique [0002] Fluorocarbon coatings have high chemical corrosion resistance, heat resistance, weather resistance and durability, and are inactive to many acids, alkalis and solvents, so they are widely used in the field of architectural decoration. At present, a lot of research has been done on the nano-modification of fluorocarbon coatings in China: Patent CN 103131275A discloses a nano-silica fluorocarbon coating. After adding nano-silica, the coating has better stability and improves the stability of fillers. Dispersibility, anti-sedimentation, anti-flow, and improve the adhesion of the paint film; patent CN 101440243A discloses a nano-titanium dioxide fluorocarbon coating, nano-titanium dioxide has a strong ultraviolet absorption capacity, greatly reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D7/65C09D127/12C09D133/04C09D107/02C09D5/08C09D7/61C09D7/63B05D5/00B05D7/14B05D7/24B05D1/02B05D1/04B05D3/00B05D1/38
CPCC09D4/06C09D7/70C09D7/65C09D127/12C09D5/08C09D7/61C09D7/63B05D5/00B05D7/14B05D7/24B05D1/02B05D1/04B05D3/002B05D7/544B05D7/546B05D2202/25C08L33/04C08L7/02C08K13/02C08K3/06C08K3/346C08K5/20C08K5/3445
Inventor 孔建忠李星
Owner 江苏成功材料科技有限公司
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